notch_filter

说明：  1. 编程实现图像傅立叶高通、低通滤波。 2. 尝试傅立叶压缩。 (1. Programming image Fourier high-pass, low pass filtering. 2. Try Fourier compression.)

一个用bp 来优化pid 参数的matlab 源程序。(A bp to optimize the use of pid parameters matlab source.)

该M文件为水声信道仿真，必出的图形，是一个基础图形，有注释，可以帮助初学者很好的理解整体思路，框架结构！(The M file for underwater acoustic channel simulation, will be out of the graphics, is a basic graphics, there are comments that can help beginners a good understanding of the whole idea, framework!)

Comminucation wireless

关于节点定位不同方法的代码,包括RSSI(Different methods of positioning the node code)

Particle Swarm Optimization

RLS算法仿真源码，有注释，能顺利运行。 (RLS algorithm simulation source)

Image Segmentation (Foreground separated from Background).

最速下降法,是一种最优化的算法，针对无约束的优化问题有效(Steepest descent method, an optimization algorithm is effective for unconstrained optimization problems)

非负矩阵分解，聂飞平老师再2014年发表的Robust Manifold Nonnegative Matrix Factorization文中提出的算法(A Robust Manifold Nonnegative Matrix Factorization algorithm was proposed by teacher nie feiping in 2014)